Wear Item Connecting Rod 4943977 Compatible with Cummins QSB6.7
Connecting Rod 4943977 for Cummins QSB6.7, High-Strength Alloy Steel, Shot-Peened — replacement for cumulative service-hour intervals rather than reactive failure. Plan rod replacement alongside matched bearings, pistons, and overhaul gasket sets to keep fleet downtime predictable Replace as a full set when one rod shows fatigue — adjacent rods share cyclic load history Evaluate crankshaft journal condition and piston pin bore wear in the same service window Replacement interval recommendations and quality inspection records ship with every order